Shade DesignThe baseball cap has a good shading effect of the brim is equipped with a mini fan; it can keep your face cool, and the solar fan can cool your face in the sun, and the solar drive does not require batteries or electricity. Energy SavingBuilt-in solar power design , energy saving and environmental protection, long service life, no batteries required. Save our planet, use green solar energy and turn on the fans. Adjustable DesignThe solar powered fan hat cools your face in the sun, and the unique self-adhesive tape design allows you to easily adjust the size according to your needs. Lightweight and comfortableThis solar fan hat is made of cotton, which is durable, breathable, comfortable, lightweight and can be used for a long time. period. Wide ApplicationThe summer hat fan can be used for traveling, fishing, climbing, golfing or watching plays, watching ball games and other activities outdoors.